Release Splice version 3.0.0-alpha.44.
Release Splice version 3.0.0-alpha.44.

 * Update for Fracture.CompletionSet.
 * Upgrade `riffle` to `2.0.0-alpha.60`.
 * Upgrade `magazine` to `6.0.0-alpha.6`.
 * Upgrade `turnstile` to `6.0.0-alpha.55`.
 * Upgrade `destructible` to `7.0.0-alpha.45`.
 * Upgrade `reciprocate` to `0.0.6`.
 * Upgrade `b-tree` to `2.0.0-alpha.84`.
 * Upgrade `operation` to `6.0.0-alpha.5`.

Closes #213.

bigeasy/splice,bigeasy/splice